Configuration Parameters - AT&T 7400B Plus User Manual

DEFINITY Communications System
7400B Plus Data Module
User´s Guide
CONFIGURATION
PARAMETERS
Parameter Storage and
Retrieval
Values for configuration parameters are selected by using ''AT''
commands. For a description of ''AT'' commands used by the
7400B Plus, refer to Appendix A, "AT Command Set."
Configuration parameter values include the option values selected
by ''AT'' commands that require option values, and the values
stored in the S-registers. A set of configuration parameter values
is called a profile. The 7400B Plus has four configuration profiles
at any given time, one active, two stored, and one that
permanently contains the factory-default values.
Unsaved changes to configuration parameters remain in effect
until they are changed again, or until the 7400B Plus is
disconnected from the AC power source. Before making or
storing any changes, or to check changes that you have made, you
can issue an ''AT'' command to view the values that are currently
in the active profile and the two stored profiles.
The active profile contains the parameter values that are currently
in effect. All parameter values can be changed, and most changes
can be stored to one of the two profile storage locations by issuing
an ''AT'' command. Another ''AT'' command recalls values from
one of the two stored profiles into the active profile.
Factory-default parameter values are a selection of values that are
appropriate for a wide number of applications. These values are
stored permanently in ROM and you can issue an ''AT'' command
to recall them into the active profile at any time.
CHAPTER 3: CONFIGURATION AND OPERATION
Page 3-7